2" piping with a 4" Cannon!?!?! Forget it.. It will drone like a mutha at speed and sound like a sqeezed fart at revs.

Go for a 2.25" cat back system with a proper high flow 2.25" or 2.5" rear muffler with a 3" tip. That will look nice and sound pretty tough too. Please don't get a 4" cannon on a GX. Please.....

A cannon has no real noise restriction qulaities as they are typically just an oversized extention to your pipe work.

A good sports muffler will restrict all of the horrible noise that a cannon produces, will actually aide in delivering more power, will sound awesome and look better than a cannon.
For instance, I have an MRT diff back muffler. It's 2.5", flowing through a round muffler with a 3" tip. It sounds good, looks good with it looking stock, although with a larger exhaust tip and adds to the cars performance.

Don't get me wrong, I'm not totally anti-cannon. They have their place on certain cars for certain applications. They certainly don't belong on Naturally Aspirated Libertys.

+1 CRUISN,
2 or 2 1/4" for a N/A. I wanted something bigger, but the exhaust shop guy talked me into a 2" hot dog resonator after the cat + oval straight through muffler at the rear. I'm glad he did, it sounds good but not offensive. If they're too big they get too droning.

being a welder by rade i was thinking of making a full 3inch exhaust system for my car instead of just having a tip........ Is there any thing i need to no before tackling this?
          cheers Mayno

its a 1991 liberty gx so you think 2.25??

for an engine to work efficiently it need to get the exhaust gases out quickly. too small of an exhuast is too restrictive.. whereas to large will not ave enough back pressure to pull the gas out.

2.25" is perfect on a 2.2ltr NA.. 2.5ltrs can run 2.5".. turbo engines 3"

well looks like 2.25 it is i will just have to go out and get some exhaust pipe and a new canon and ill be set......... thanks lads

yeah ill use 2.25 and mandrel bend it and get like 3 3" tip or something... ill work it out as i go

oi, if ur making ur own, see how much it cost to do it and tell us, cos i'm sure there would be a couple of people on here who would buy them off you...

given the right price, i know i would....

2.25 ftw man...

hey guys,
quick opinion. does $330 sound alright for a 2" catback sports exhaust system with a tip of my choice??

thanks guys

yea thats what i thought.

as in brand or orientation? he said oval straight through muffler, but didnt mention anything about brand.......

It muffles the sound better, depending on the quality of the muffler.
Also it looks 11tybillion times better.